Algebra

1. -4 - x - 5 >= -11 -6x
Let's first put the common terms together: 
-9 - x >= -11 - 6x
Now you can divide by (-1) both sides, and change the sign of the inequality. 
9 + x >= 11 + 6x
-2 >= 6x - x
-2 >= 5x
x <= -2/5

2. 3y = 2x - 9
I don't know what are they asking you here. 
You can put y in terms of x by dividing both sides by 3.
y = (2x-9)/3

And we finished.